I currently use a TP-Link EAP650 v1. (https://www.tp-link.com/en/business-networking/omada-sdn-access-point/eap650/v1/) (v2 is the same device but some other hardware revision I don't know off.)
I'm new to OpenWRT and I'm not sure if there is any firmware supporting this device. As the EAP650 lack the possibility to enter exceptions in Client Isolation Mode to prevent clients accessing each other but allowed to talk to a server (Which is on the same subnet, so I cannot apply firewall rules), I would like to use OpenWRT on this AP.